CI: add step to upload wheels to wxpython.org #50

Job	Run time
build-source-dist	10m 55s
build-wheels (ubuntu-22.04, 3.8, x64)	23m 39s
build-wheels (ubuntu-22.04, 3.9, x64)	24m 8s
build-wheels (ubuntu-22.04, 3.10, x64)	23m 20s
build-wheels (ubuntu-22.04, 3.11, x64)	23m 8s
build-wheels (ubuntu-22.04, 3.12, x64)	23m 38s
build-wheels (ubuntu-22.04, 3.13-dev, x64)	24m 2s
build-wheels (windows-2022, 3.8, x86)	23m 3s
build-wheels (windows-2022, 3.8, x64)	20m 56s
build-wheels (windows-2022, 3.9, x86)	23m 30s
build-wheels (windows-2022, 3.9, x64)	20m 54s
build-wheels (windows-2022, 3.10, x86)	23m 15s
build-wheels (windows-2022, 3.10, x64)	23m 15s
build-wheels (windows-2022, 3.11, x86)	23m 32s
build-wheels (windows-2022, 3.11, x64)	21m 5s
build-wheels (windows-2022, 3.12, x86)	23m 59s
build-wheels (windows-2022, 3.12, x64)	22m 12s
build-wheels (windows-2022, 3.13-dev, x86)	24m 40s
build-wheels (windows-2022, 3.13-dev, x64)	23m 23s
build-wheels (macos-13, 3.8, x64)	37m 37s
build-wheels (macos-13, 3.9, x64)	43m 50s
build-wheels (macos-13, 3.10, x64)	50m 35s
build-wheels (macos-13, 3.11, x64)	38m 52s
build-wheels (macos-13, 3.12, x64)	37m 14s
build-wheels (macos-13, 3.13-dev, x64)	40m 4s
Upload wheels to snapshot-builds on wxpython.org	1m 50s
Publish Python distribution to PyPI	0s
Create GitHub Release and upload source	0s
	11h 16m 36s

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